
\begin{tabular}{llr@{$\pm$}lr@{\hspace{0.01in}}cr@{$\pm$}lr}
         &     & \multicolumn{3}{c}{\bf{Edge}} 
              && \multicolumn{3}{c}{\bf{Path}} \\ 
\cline{3-5} \cline{7-9}
               & $|S_l|$
               & \multicolumn{2}{c}{Drift (\%)}
               & $99\%$
              && \multicolumn{2}{c}{Drift (\%)}
               & $99\%$ \\ \hline
\bzip\   & 50   & 0.78&5.97 & 0.08 && 0.58&2.83 & 0.00 \\
\bzip\   & 1k   & 0.85&6.92 & 0.18 && 0.52&3.13 & 0.01 \\
\crafty\ & 2    & 1.08&7.38 & 0.11 && 0.05&1.49 & 0.00 \\
\crafty\ & 60   & 0.65&4.42 & 0.04 && 0.00&0.13 & 0.00 \\
\hline
\end{tabular}
